DATA_GOT_TYPE undeclared on non-x86_64 architectures (ppc64, ppc64le, aarch64)

[SamHerts]

Building Spindle on non-x86_64 architectures (aarch64, ppc64, ppc64le) fails with a compile error

writablegot.c:124:50: error: 'DATA_GOT_TYPE' undeclared (first use in this function)
  124 |          if (ELF64_R_TYPE(datarels[j].r_info) != DATA_GOT_TYPE)
      |                                                  ^~~~~~~~~~~~~

Root cause:

DATA_GOT_TYPE is defined in the architecture guard block in

Spindle/src/client/auditclient/writablegot.c

Lines 47 to 50 in 4174224

	#if defined(arch_x86_64)
	#define DEFAULT_RELENTSZ 24
	#define EXTRA_GOT_ENTRIES 3
	#define DATA_GOT_TYPE R_X86_64_GLOB_DAT

but not defined for other architectures

Spindle/src/client/auditclient/writablegot.c

Lines 51 to 53 in 4174224

	#elif defined(arch_ppc64) || defined(arch_ppc64le)
	#define DEFAULT_RELENTSZ 24
	#define EXTRA_GOT_ENTRIES 2

Spindle/src/client/auditclient/writablegot.c

Lines 54 to 56 in 4174224

	#elif defined(arch_aarch64)
	#define DEFAULT_RELENTSZ 24
	#define EXTRA_GOT_ENTRIES 4

The macro is then used unconditionally at line 124 regardless of architecture, causing the build to
fail on any architecture other than x86_64.

Spindle/src/client/auditclient/writablegot.c

Lines 123 to 125 in 4174224

	unsigned long target = datarels[j].r_offset + map->l_addr;
	if (ELF64_R_TYPE(datarels[j].r_info) != DATA_GOT_TYPE)
	continue;

Expected behavior

Spindle should build successfully on all supported architectures (x86_64, ppc64, aarch64).

Suggested fix

Add the appropriate ELF GLOB_DAT relocation type constant for each architecture in the guard block. The
correct constant names should be confirmed from <elf.h> on each target platform

Arch	VAR_NAME	Source
PPC64	R_PPC64_GLOB_DAT	elf.h L2710
Aarch64	R_AARCH64_GLOB_DAT	elf.h L3026

Environment

• Spindle: devel branch (commit 4174224)
• OS: Rocky Linux 10.1 (Red Quartz)
• Compiler: GCC 15 (gnu15 toolchain)
• Affected file: src/client/auditclient/writablegot.c:124